Speed Switch Module

UO-EM-EGS4 / UO-EM-EGS41 SIL 2

System solution u-one-lwl

Output signals / Interfaces

• Monitor overspeeds and underspeeds
• Relay contacts / switching outputs: 2 programmable, 1 diagnostics
• Switching capacity up to 250 V AC/DC and 0.5 A
• Options: SIL 2 / PL d certification (UO-EM-EGS41)

The Speed Limiters

The speed switch modules are electronic overspeed switches that monitor the defined speeds for overspeed and underspeed. By design they include a switching delay, an inverse direction of rotation evaluation, a direction of rotation dependent switching function and the option to perform a switch test. They are easily programmed via the decoder interface.

Specifications

Supply voltage	12-30 VDC
Dimensions	99.5 x 45 x 114.5 mm (modular electronics housing for DIN rail)
Signal outputs/Interfaces	Module UO-EM-EGS4: -2 speed switches (NO contact 2-230 V / 0.5 A AC/DC), 4 selectable operating ranges available: 0.63-300 rpm / 2.5-1200 rpm / 5-2400 rpm / 10-3000 rpm -1 system monitoring switch (NO contact 2-230 V / 0.5 A AC/DC) -Programmable functions via decoder module UO-EM-D2: Password protection, inverse direction of rotation evaluation, overspeed and underspeed, switching delay, direction-dependent switching function, switch test, monitoring Module UO-EM-EGS41 SIL 2: -2 speed switches (one each NC contact and NO contact, max. 230 V / 0.5 A AC/DC), operating range 0.5-2700 rpm -1 Diagnostics switch (NC contact, max. 230 V / 0.5 A AC/DC) -1 potential-free reset input (12…30 VDC) -Programmable function via mini USB: Password protection, inverse direction of rotation evaluation, overspeed and underspeed, direction-dependent switching function, switching delay, open-circuit recognition, delayed overcurrent switch off, switch test, monitoring
Electrical connection	Module UO-EM-EGS4: -Screw terminals to connect switches -Series connectors to preceding and following modules (internal bus connection) Module UO-EM-EGS41 SIL 2: -Screw terminals to connect switches and reset input -Mini USB to facilitate programming functions (software EGS 41 Pro) -Series connectors to preceding and following modules (internal bus connection)
Device temperature range	-25 °C to +70 °C
Degree of protection	IP20 (switchboard installation)
Device options	Combines with other modules belonging to the U-ONE System
Special features and certificates	-UOM 41L and associated modules UO-…-… 41: SIL 2 (DIN EN 61508); PL d (DIN EN ISO 13849) -UL/CSA